Polished-rod rotor



June 5, 1928.

A. BOYNTON POLI SHED ROD ROTOR Filed June 19, 1926 2 Sheets-Sheet 1 I?mw Z M June 5, 1928. 1,672,244

A. BOYNTON POLISHED ROD ROTOR Filed June 19, 1926 2 Sheets-Sheet 2gwomtoo FLEXH/VDEI? BOY/V70;

attomwq I rod.

Patented June 5; 1928 I ALEXANDER BOYNTON, OF. SAN" ANTONIO, TEXAS.

POLISHED-ROD ROTOR.

Application manna, 192 Serial No. 117,194.

This invention relates to polished .rod rotors especiallyadaptedforusein pumping wells and an important objectis to provide simple meanswhereby the polishe drod andthe reciprocating mechanism vconnectedthereto may be rotated slightly on the down strokes of the polished rodto uniformly distribute wear and thereby avoid thenecessity offrequently interrupting pumping for the purpose of renewing worn parts,such as cups or a plunger, as the case may be, the working barrel,stuffing box and polished Another aim is to provide simple means wherebythe rotor is prevented fromtwisting the rods to the. breaking pointshould the cups or plunger stick. v i

A further and equally important object of the inventionis to provide apolished rod rotor which may be expeditiously attached without theexercise of unusual skill and without substantiallyv modifying thestructure of the parts in use. i f

. Another aim of the invention is to provideva polished rod rotor inwhich the actuating member may be completely detached from the, actuatedpart of the invention which is mounted on the polished rod to 'per- Imit of the pulling of the rodscwithout entirely dismantling the device.

Other objects and advantages lwillbe apparent during the course of thefollowing description. 7 v

In the. accompanying drawings forming a part of this application andin'whichlike numerals are employed to designate like parts throughoutthe same,

Figure 1 is a, perspective of'the improved rotor applied above the beam;

Figure 2 is a perspective of the improved rotor applied below the beam'7 Figure 3 is a vertical sectional the improved rotor;

Figure 4 is a horizontal sectional view taken on line 4-4 of: Figure .3;v

Figure 5 is a. perspective of a modified form of invention applied abovethe beam; Figure 6 is a perspective of'the rotor shown in Figure 5applied below the beam Figure '(1 is a vertical sectional View throughthe rotor shown in Figures 5 and'6;

Figure 8 is a horizontal sectional view taken on line 8 801? Figure 7.

viewthrough ratchet teeth 26 on Figure 9 group perspective illustratinga sllght modification of the invention.

rod. '11 and the usual pumping equipment connected thereto. Of course, adrivingconmotion is established betweenthe rocking '55 In the drawings,the numeral lOdesignates a beam adapted for reciprocating apolished beam10 and the vertically movable rod llthrough: the usual olishe-d rodtrunnionas shown in the drawings. At this point cit is noted that theemployment of this invention contemplates the loosening of the clampingscrew 12 of the trunnion so that intermittent rotationmay be imparted:to the, olished rod as will be described. 1 However,t e clamping screw12 may engage the polished rod-until the device has beenmounted abovethe beam as shown in Figurefl or below the beam as shown inFigure 2 tosupport'the weight of the rods during the attachment of the de- V108. Iv I The body of the rotor is more or less tubularand is desi nated bythe numeral 14 and is designed to fiesecured on the polished rod by setscrews 15. The set screws are, preferably positioned adjacent the ends.of the body 14.

In carrying out the-invention, an attach- 111g member 17 isrotatablymounted on the intermediate portion of the body and consists of a pairof.s ubstanti'ally semi-circularsections adapted to beconnectedbyfastening bolts 18 as clearly shown in'Figure 4. The

attaching member or carriage is confined between upper and lower.annular; flanges 19 and 20, respectively,and'is held againstendwisemovement on the body bylsaid flanges. However, the upper flange.19is really un-;

necessary as the member 17 rests by gravity on the shoulder 20 sothatthe dog 22 carried by the housing 24 of the shell is at all times inoperative relation to an annular series of the intermediate portionofthebody. V

Figure 3 clearly illustrates that the attaching member, 17 consistsof-upper and lower spaced strapsrarranged on opposite sides of theratchet teeth 26 and provided with grease cups 29 by means of which thedevice may be lubricated. However, the lubricators 29 may be dispensedwith and the device 00- cgsionally lubricated with the aid of a can 0oil. i i

- Referring now to Figure 3, it will be seen that the dog 22 is movablypositioned Within the housing 24 and is urged into constant engagementwith theteeth 26 bya coil' 'spring 32 confined between the rear end ofthe dog and the inner end of a nut 33 which is threadedon the reducedterminal portion of the; hous ing. The dog 22 is provided with arearwardly projecting shank 34 which extends radiallyand is surroundedby the convolutions of the spring 32. It willbe seen that it is a simplematter to attach the. dog to. the housing as the removal of the nut 33permits of the'original introduction of the dog 22' and the spring andwh'en the nut 33 isin place it will act as anabutment for one endo-t'the springand as ai means to hold a combined bearingand swivelmei'nbe-r 36 on the housing 24.

The member 36- is" in the nature ofan annulus mounted on the housing 24-between the nut 33 and an annularshoul-der of the housing and theannulus is n'ovided witl'i radial lugs-4O to which the-laterallyslottedbranches of anoperatinglink 42am con nectcd; More specifically, theradiallugs of the combined bearing and swivel'member 36 are received in"laterally extending slots in the branches of the link 42 and permit the"link to partake of the 'l-imitedjswiveling movement about the ares'ofthe lugs- 40' when the rotor-is in operation; In addition to this themounting of the member 36 on the radial extension 24 permitsthe link 42to partake of a limited movementa-b'out'the axis of the:

radial extension in the operation of 'the' im proved: rotor; 'I't'is'thusfseenthatthe hous ing 24' not only functions as such, butalso as: I

a trunnion for the connection of the operating link 42 to the-dogcarrying members The link 42 be pivotally and a'djust ably connected toanactuator 46 as indicated at 47' and the-actuator is" provided with anattach-ingplate '48 which may be secured to the beam' by fastening boltsor other suitable means. It here noted that the connection-47 may: bequickly broken should it be desired to pull therodsgfi-n which case thebody 14 and associated elements may be:

allowed toremainon the polished rod clur in-g-the; pulling operation;The actuator 46 is,'oi course, allowed to remain-in place on the beamand will not in any 'way'intertere with the-pulling of the rods;

In applying the improved rotor-above the beam as shown in Figure 1suitable washers may be mountedabove the polished rod,

trunnion or a clamp 50 otconventional or 1 other" design may bepositioned between the polished rod trunnion and the lower end of therotor; It isbelieved to be apparent that more rotating action may beobtained by elevatingthe body of the rotor" by the employmentoaE-theclamp 50' or the equivalent thereof. A lubricating cup 51 and aWasher 52 may be positioned directly beneath the body 14 and the cupemployed for the reception of oil by means of which the contact surfacesof the washer 52 may be, lubricated. This also gives greater elevation.I

After the application of the Washer'52 and the cup 51 the rotor heslipped onto the polished rod and locked thereon as previouslydescribed. c I

Finally, the link 42 is connected to the member- 86 and'theactuator 46and to adjust the rotor for propcroperation the beam is positionedmidway between the ends of its travel the combined housing and trunnion24 arranged at right, angles thereto.

The actuator 46 may have to be adjusted to'some extent onth'e beam sothe combined housing and trunnion 24 will be: at" exactly right anglesto the beam when-the beam is positioned midway of the ends of itstravel; Thls brings about the uniform movement ot' the rotor in bothdirections, but, ofcourse,

the polished rod is turned onlyon the'fcl escent of the reciprocatingequipment.

By causing the turning of the rods ont'h'e d'escent thereof the'loadpresent on th-e up stroke of the rods is avoided'and conse'qnently thefri'ction'i'ncident to the r'aising'of the rod's so that parting oftherods and" the, v

fishing jobsincident thereto areavoided.

When the rotor is, applied below the beam as shown in Figure 2 theactuator 46 is,. of course, positioned on the opposite side of the beamfrom Where it was When'the rotor was operating above the beam to bringabout the intermittent rotation of; the rodsin the proper direction. ,3i V I In the form of invention shownin. ures 5. to 8,'inclusive-, thestructure is substantially the same as that illustrated in Figures 1' to4, inclusive, except that the" shank 122 of the dog isprov'ided' with anextension 124 which extends out. through the outer end of the nut sothat/the same may be gripped by a pair of pliers or'the like when it isdesired to either apply or" detach'the member 117 mounted. on the bodyof the rotor; In this case the member 117" is in the nature of a band orannulus which.

extends about the body and is; rotatably mounted upon the annular flange120 as. clearly shown in Figure 71 Figure 8 illus trates that theannulus 117 inthi's form- Of'lDVQl'lfiOII may be cast in one piece andencloses the gear teeth with which thedog is engaged; p

This form of invention may operate above the beam as shown in Figure501" below rotation to the rods.

designed to the the beam as shown in Figure 6 and ineither case willimpart the desired intermittent Particular attention is directed toFigures 1 and 2 which-illustrate that the actuator 46 cannot be appliedto the 'wrong side of the beam. This is true whether the actuatorisapplied for operating a rotor positioned above or below the beam. Itwill be seen that since the actuator 46 extends out from one side of theattaching bar 48 the actuator may be positioned onlyon one side of thebeam when it is desired to operate the rotor above the beam and on theopposite side when it is desired to connect the same to a rotor belowthe beam. In other words, it is impossible to apply the actuator aswrong side of the beam. This is an especially important feature sincethose who are charged with the care of the wells and the equipment arenot always as careful as they might be.

As pointed out in the objects, the rotor cannot twist the rods to thebreaking point should the cups or the plunger stick. In explaining this,it is pointed out that each time the rotor turns the rods in a clockwisedirection the rods will remain so turned by reason of the frictionbetween the rotor body 14 and the washer 52 upon which the same ismounted. During the normal operation of the rotor there will be nothingof consequence to resist the intermittent turning of the rods andconsequently the rods will remain in the position they are turned untilthey are further rotated. 7

However, should the cups or the plunger stick, the rotor will continueto turn the rods until a back twist or strain is built up. This backstrain or twist, will of course, be in a counter clockwise direction.Considering Figures 1 and 3, it will be seen that when the back twist inthe rods exceeds a predetermined point as a result of sticking of thecups and thecontinued operation of the rotor the rotor body 14 will turnback i in a counter clockwise direction each time the rods.

the radial housing 24 and the actuator arm or link 42 is moved back.This prevents the building up of additional back strain in It will,therefore, be seen that when the back strain exceeds a predeterminedpoint the friction between the rotor body lt and the washer 52 will beovercome and the rotor body 14 will be moved back each time the housing24 partakesof a counter clockwise direction so that the back twist inthe rods is prevented from approaching the breaking point.

in the form of invention illustrated, in Figure 9 the radial housing isprovided with a reduced terminal portion 160 upon which thesemi-circular sections 161 of a swivel member corresponding to theswivel member 36 are mounted. The semi-circular sections 161 and-theradial lugs 162 consti tute an attaching means .by which the forkedterminal of the actuator 42 maybe connected to the radial housingforoperating the same. Of course a nut 163 may be employed to hold thesections 161 in place.

Having thus described the invention, what'is'claimed is: a

1. Apolished rod rotor comprising a body adapted to be secured'on areciprocating portion" of, a well pumping equipment and being providedwith teeth, a combined housing straps rotatably connected to said bodyabove and below said teeth, a dog within connected to said body atopposite sides of said teeth, a dog within said combined housing andtrunnion and engaged with said teeth, a combined bearing and swivelmounted on saidcombined housing and trunnion, an operating memberswiveled to said combined bearing and swivel, and an actuatorconnectedto said operating member,

3. A polished'rod rotor comprising a body adapted to be secured on thereciprocating equipment of a pumping well and being providedwith-ratchet teeth, a combined housing and trunnion member having upperand lower attaching straps secured to said body above and below saidratchet teeth, a dog within said housing and adapted to engage saidratchet teeth, a spring within said housing and urging said dog intoengagement withsaid teeth, a nut threaded on said combined housing andtrunnion and constituting an abutment for one end of said spring, acombined bearing member and swlvel rotatably mounted on said combinedhousing saidbody, a dog within said housing and adapted to engage saidratchet teeth, a nut threaded on said combined housing and trunnion andconstituting an abutment for one end of said spring, a combined bearingmember and swivel rotatably mounted on and trunnion having upper andlower and trunnion, said nut being engaged with 1 said. combined housingand trunnion, said nut being engaged with said combined. hearing and.sW-iveh to: holdthe same in place, a link swixrel'ed to said combined:bearing. and swivel-3. and. an actuator connected to said link andhaving means whereby the same may be connected to a beann 5. In apolished rod rotor, the: combination of an actuating member having aradial housing provided with a reduced terminal, a sectiormd; swiveihmember mounted on said reduced terminal and having: radial Lugs,

and; means: to hold be'r-in'. place. l

6 In a polished rod tiiOIl' of am actuating member having a: radialhousing, aswi-ivel member rotatably mounted on said housing; and.c'onsisiliingv of separate sections, and operating device having afiorlred terminal engaging, the: separate see.- 2

tions of said swivel. member, and: having means holding the same place.

Inv testimony whereo fi I afiix my signature.

ALEXANDER BO YNTQN.

the sectional: swivel mam.-

INDY; the: combina-

